What should the travel angle be for welding in the flat position?

• A. 5 to 10 degrees
• B. 25 to 30 degrees
• C. 15 to 20 degrees
• D. 35 to 40 degrees

Answer: (C)

In the flat welding position, you want a moderate travel angle to keep the heat and molten metal well controlled. About 15 to 20 degrees is ideal because it directs the heat into the weld pool while still letting gravity help the puddle flow smoothly. This angle helps produce a stable, well-formed bead with good fusion and minimal undercut.

If the angle is too small (5 to 10 degrees), the bead can become too wide and flatter, increasing the risk of lack of penetration in some cases and making slag removal harder. If the angle is too large (35 to 40 degrees), the arc can ride ahead of the puddle, concentrating heat in front of the bead, which can lead to excessive penetration, a narrow bead, and less control over the weld. The 15 to 20 degree range strikes the best balance for most flat-position welds, with minor adjustments based on material thickness and process.